Pongo mi configuración, estoy usando Kalyway 10.5.2 actualizado a 10.5.3 y va perfectamente, esta tarde intentaré instalar la versión original de mac os x y actualizar a la 10.5.6 pero aquí pongo mi equipo.
Placa base: Gigabyte GA-X38-DS5 (Actualizada a F6)
CPU:Intel Core 2 Duo E6850
RAM: 3x2 Gb DDR2-800 400MHz
Grabadora: Una Pionner, una LG (las dos por IDE) y una LG por SATA
Disco duro: 1 disco duro 750Gb (Windows y Mac) y 1 disco duro 1Tb (Datos) los dos por SATA
Gráfica: 8800GTS 510Mb
Test realizado con Xbench
Results 124.69
System Info
Xbench Version 1.3
System Version 10.5.3 (9D34)
Physical RAM 6144 MB
Model MacPro3,1
Drive Type ST3750640AS ST3750640AS
CPU Test 188.41
GCD Loop 354.11 18.67 Mops/sec
Floating Point Basic 169.89 4.04 Gflop/sec
vecLib FFT 138.60 4.57 Gflop/sec
Floating Point Library 188.47 32.82 Mops/sec
Thread Test 285.71
Computation 265.83 5.39 Mops/sec, 4 threads
Lock Contention 308.80 13.28 Mlocks/sec, 4 threads
Memory Test 197.30
System 245.77
Allocate 337.48 1.24 Malloc/sec
Fill 205.15 9974.89 MB/sec
Copy 228.88 4727.35 MB/sec
Stream 164.80
Copy 155.46 3210.95 MB/sec
Scale 157.62 3256.37 MB/sec
Add 173.89 3704.26 MB/sec
Triad 174.08 3724.06 MB/sec
Quartz Graphics Test 265.45
Line 213.57 14.22 Klines/sec [50% alpha]
Rectangle 284.95 85.07 Krects/sec [50% alpha]
Circle 228.78 18.65 Kcircles/sec [50% alpha]
Bezier 221.03 5.57 Kbeziers/sec [50% alpha]
Text 571.64 35.76 Kchars/sec
OpenGL Graphics Test 98.94
Spinning Squares 98.94 125.51 frames/sec
User Interface Test 388.01
Elements 388.01 1.78 Krefresh/sec
Disk Test 38.74
Sequential 111.95
Uncached Write 69.69 42.79 MB/sec [4K blocks]
Uncached Write 124.35 70.36 MB/sec [256K blocks]
Uncached Read 154.25 45.14 MB/sec [4K blocks]
Uncached Read 145.87 73.32 MB/sec [256K blocks]
Random 23.42
Uncached Write 7.21 0.76 MB/sec [4K blocks]
Uncached Write 99.44 31.83 MB/sec [256K blocks]
Uncached Read 78.89 0.56 MB/sec [4K blocks]
Uncached Read 107.22 19.90 MB/sec [256K blocks]
Saludos!